Amada UNIFLOW 4 REMOTE, Operation Manual, Page: 89 / 176

CHAPTER 4: OPERATING INSTRUCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 4-7
Abbreviation Time Calculation
BAS Baseheat Initiation of
process
to end of
Baseheat time.
RS1 Rise1
End of
Base
to when the actual temperature reaches the
Preheat
temperature setting less
the user-set
Preheat Temperature Delta
in the Profile.
PRE Preheat
From the point where
Rise1
reached the
Preheat
temperature setting less the
Preheat
Temperature Delta
to end of
Preheat
Time
RS2 Rise2
End of
Preheat Time
to when actual temperature reaches the
Reflow
temperature setting
less the
Reflow Temperature Delta
.
RFL Reflow
From point where
Rise2
reached the
Reflow
Temperature setting less the
Reflow
Temperature Delta
to end of
Reflow
time
CL1 Cool1 End of
Reflow
Time to when
Cool1
temperature setting is reached.
PSH Postheat End of
Cool1
to end of Postheat Time.
CL2 Cool2 End of
Postheat
Time to when
Cool2
temperature setting is reached.
Preheat and Reflow Control
The process timing for
Preheat, Reflow
and
Postheat
can be set for control based on
TIME
or
TEMPERATURE
. This setting is made in the Schedule Setup.
If
TIME
is selected for
Preheat and Reflow Control
, the Control will execute the full
Rise1
and
Rise2
user-
set times before starting the
Preheat
and
Reflow
user-set times. The Control will follow the programmed
Rise1
and
Rise2
ramp slopes for the full
Rise1
and
Rise2
times. The Control will also execute the full
Preheat
and
Reflow
times.
If
TEMPERATURE
is selected for
Preheat and Reflow Control,
the Control will execute
Rise1
until the
actual temperature reaches the
Preheat
temperature setting less the user-set
Preheat Temperature Delta
in
the Profile. At that point, the Control will switch to the Preheat stage and control to the Preheat
temperature for the length of time the user-set for the Preheat time. For example, if the
Preheat
temperature is set to 150°C and the
Preheat Temperature Delta
is set to 10°C,
Rise1
will end and
Preheat
will begin when the temperature reaches 140°C during
Rise1
.
Rise2
and
Reflow
will perform in a
similar manner.
Functionality Example #1: Temperature is selected for
Preheat and Reflow Control .
This
example is based on the following Control settings:

Temperature
delta for preheat = 10° C

Rise1
time of 2.0 seconds

Preheat
time of 3 seconds

Preheat
temperature of 150°C